Calcium Silicon 24/70 Deoxidizer Lump from China
This ferroalloy grade with 24% calcium and 70% silicon is supplied in lump form (10-50mm) for use in secondary steel refining. Classified under HTS 7202.99.20.00 as calcium silicon, it provides both deoxidation and desulfurization functions in ladle metallurgy.
Duty Rate — China → United States
42.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Lump size specification (10-100mm typical) should be documented; fines under 10mm may face different handling requirements
• Include safety data sheets noting pyrophoric properties when wet; pitfall is incorrect hazmat class (often UN1405)
• Confirm no cored wire format, as that changes classification to 8311.20